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The Human Body

This comprehensive overview explores the intricate interactions among human body systems, including the organization of cells, tissues, organs, and organ systems. We delve into essential inorganic and organic compounds necessary for bodily functions, focusing on minerals, carbohydrates, nucleic acids, proteins, and lipids. Additionally, we examine major body systems such as the integumentary, muscular, skeletal, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, and urinary systems, and discuss the critical process of homeostasis that helps maintain balance and stability within the body.

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The Human Body

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Presentation Transcript

  1. The Human Body Interactions of Human Systems

  2. Organization in Organisms Organism Organ System Organ Tissue Cell

  3. Vocabulary • Cell: smallest functional unit in an organism • Tissue: Groups of similar cells that do the same job • Organ: Structure made up of different types of tissues that work together • Organ System: A group of organs that work together to do a certain job

  4. Needs of the body • Inorganic substances • Minerals – involved in chemical reactions • Examples: calcium, potassium, sodium • Water – involved in nearly every bodily function

  5. Needs of the body • Organic Compounds – compounds containing carbon • Carbohydrates – Main source of energy for living things • Starches, pasta, potatoes, rice, sugars • Nucleic Acids – large, complex; store information in the form of code • DNA, RNA • Proteins – make up structural parts of the body, such as hair, nails, skin, muscles, and blood vessels • Lipids – stored in the body as energy reserves • fat and oils

  6. Systems • Integumentary • Skin • Protects the body • Prevents water loss

  7. Systems • Muscular • Muscles • Movement of the body • Attached to bones

  8. Systems • Skeletal • Bones • Support • Protection of soft body parts

  9. Systems • Nervous • Brain, spinal cord, nerves • Controls mental and bodily functions

  10. Systems • Endocrine • Pancreas, pituitary gland • Controls homeostasis • Releases hormones

  11. Systems • Circulatory • Heart, blood vessels • Transport of materials to and from body cells • Oxygen, carbon dioxide, nutrients, wastes

  12. Systems • Lymphatic • Spleen, thymus, tonsils • Remove dead cells and foreign bodies from body fluids

  13. Systems • Respiratory • Lungs, trachea • Exchange of gases between blood and the environment

  14. System • Digestive • Stomach, small intestine • Breaks down food for absorption into the blood

  15. Systems • Urinary • Kidneys, bladder • Control of water balance • Chemical balance of the blood

  16. Homeostasis • Process by which the body maintains a stable internal environment • The body senses changes in the environment and responds by changing its bodily functions • Example: body temperature, blood sugar, increasing heart rate and breathing when exercising

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